Pith. sign in

REVIEW 11 cited by

The Life and Times of Giant Molecular Clouds

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2203.09570 v1 pith:SIJ3N7CW submitted 2022-03-17 astro-ph.GA

classification astro-ph.GA
keywords feedbackformationgmcsmolecularstudiescloudsconditionscurrent
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

Giant molecular clouds (GMCs) are the sites of star formation and stellar feedback in galaxies. Their properties set the initial conditions for star formation and their lifecycles determine how feedback regulates galaxy evolution. In recent years, the advent of high-resolution telescopes has enabled systematic GMC-scale studies of the molecular interstellar medium in nearby galaxies, now covering a wide range of physical conditions and allowing for the first studies of how GMC properties depend on galactic environment. These observational developments have been accompanied by numerical simulations of improving resolution that are increasingly accurately accounting for the effects of the galactic-scale environment on GMCs, while simultaneously improving the treatment of the small-scale processes of star-formation and stellar feedback within them. The combination of these recent developments has greatly improved our understanding of the formation, evolution, and destruction of GMCs. We review the current state of the field, highlight current open questions, and discuss promising avenues for future studies.

Discussion (0). Sign in to comment.

Forward citations

Cited by 11 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 49 citations worldwide. Full citation record

  1. The In Situ Growth of Stellar-mass "Light" Seed Black Holes in Nuclear Star Clusters

    astro-ph.GA 2026-03 conditional novelty 6.5 of 10

    With fiducial feedback-regulated accretion, in-situ light seed black holes in nuclear star clusters grow only to ~400–500 solar masses; runaway growth to ~10^6 solar masses requires an unrealistically high Bondi captu...

  2. A Multiwavelength Inventory for the Local Group L-band Survey I: Atlas and Radial Profiles of Local Group Galaxies

    astro-ph.GA 2026-07 conditional novelty 6.0 of 10

    Atomic gas is the most extended component in six Local Group galaxies, and atomic-gas depletion times rise from about 1 Gyr in the inner disks to tens-to-hundreds of Gyr in the outer disks.

  3. A Naked Dwarf: Molecular Gas in the Completely Stripped HI Tail of VCC 1249

    astro-ph.GA 2026-07 conditional novelty 6.0 of 10

    Marginal CO(2-1) emission is detected in the stripped HI tail of VCC 1249 while its stellar disk shows no CO, hinting at complete cold-gas removal and rapid environmental quenching.

  4. Preferential alignment of Class 0, Class I protostellar disks in multiple systems across nine nearby molecular clouds

    astro-ph.SR 2026-07 conditional novelty 6.0 of 10

    Disks around young stars in binary and higher-order multiple systems are preferentially aligned out to 6000 AU, implying turbulent fragmentation alone cannot explain how most multiples form.

  5. Protostellar disks in their natural habitat -- the formation of protostars and their accretion disks in the turbulent and magnetized interstellar medium

    astro-ph.GA 2025-06 conditional novelty 6.0 of 10

    Simulations from a supernova-driven turbulent ISM show ideal MHD prevents disks larger than 10 au, while ambipolar diffusion permits large disks in two of six protostellar cores.

  6. Time-scales of polycyclic aromatic hydrocarbon and dust continuum emission from gas clouds compared to molecular gas cloud lifetimes in PHANGS-JWST galaxies

    astro-ph.GA 2025-06 conditional novelty 6.0 of 10

    Mid-infrared PAH and dust emission from gas clouds persists 10 to 30 Myr in 17 PHANGS-JWST galaxies, matching CO cloud lifetimes, with a 3 to 7 Myr overlap with Hα emission.

  7. Stellar populations in STARFORGE II: Comparison with observations

    astro-ph.GA 2025-05 conditional novelty 6.0 of 10

    Adding Gaia-like biases to STARFORGE simulated groups under-recovers masses by up to 80%, overestimates sizes by up to 10x, inflates virial parameters by up to 10x, and leaves traceback ages reliable only for truly un...

  8. The Co-Evolution of Stellar Wind-blown Bubbles and Photoionized Gas II: 3D RMHD Simulations and Tests of Semi-Analytic Models

    astro-ph.GA 2025-05 conditional novelty 6.0 of 10

    Photoionized gas reduces the cooling surface area of a wind-blown bubble, boosting its momentum impact in 3D RMHD simulations, while a coupled semi-analytic model matches simulated radii and momenta to about 20 to 30 percent.

  9. The Co-Evolution of Stellar Wind-blown Bubbles and Photoionized Gas I: Physical Principles and a Semi-Analytic Model

    astro-ph.GA 2025-05 conditional novelty 6.0 of 10

    A new semi-analytic model treats wind-blown bubbles and photoionized gas as coupled regions, and predicts the combined momentum differs by up to 25% from naive estimates in typical star-forming clouds.

  10. CU-JADE: A Method for Traversing Extinction Jumps along the Line of Sight

    astro-ph.GA 2025-07 conditional novelty 5.0 of 10

    CU-JADE applies cumulative-sum change-point detection to stellar distance-extinction data to locate multiple dust layers, yielding new molecular cloud distances and an all-sky 3D extinction map extending to 4 kpc.

  11. The most massive star clusters in molecular clouds: Insights from the integrated cloud-wide initial mass function (ICIMF) theory

    astro-ph.GA 2025-06 conditional novelty 5.0 of 10

    The most massive cluster in a molecular cloud scales with cloud mass and star formation rate, and this scaling is consistent with the integrated cloud-wide IMF model, though the model's key parameters are fitted to th...

Pith tools